/*
 * Copyright (c) 2008 Kevin Wetzels
 * 
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 * 
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */
package be.roam.jindy.collection;

import java.util.Collection;
import java.util.Map;

/**
 * Utility methods for working with collections.
 * 
 * @author Kevin Wetzels
 */
public class CollectionUtils {

	/**
	 * Checks if the collection is <code>null</code> or empty.
	 * 
	 * @param <ElementType>
	 *            type of elements in the collection
	 * @param collection
	 *            the collection
	 * 
	 * @return <code>true</code> when the collection is <code>null</code> or
	 *         empty
	 */
	public static <ElementType> boolean isEmpty(Collection<ElementType> collection) {
		return (collection == null || collection.isEmpty());
	}

	/**
	 * Checks if the map is <code>null</code> or empty.
	 * 
	 * @param <KeyType>
	 *            type of keys
	 * @param <ValueType>
	 *            type of values
	 * @param map
	 *            the map
	 * @return <code>true</code> when the map is <code>null</code> or empty
	 */
	public static <KeyType, ValueType> boolean isEmpty(Map<KeyType, ValueType> map) {
		return (map == null || map.isEmpty());
	}

}
